Analog vector summing device

Abstract

An analog vector summing device including a microwave line that has a first end and a second end that are electrically part of the microwave line; an output line that comprises a coupling line that is electromagnetically coupled to the microwave line across a gap, wherein the output line further comprises an output end which is electrically part of the output line, to provide a signal which represents the vector sum of the respective signals at the input ends.

The invention claimed is: 
     
         1 . An analog vector summing device, comprising:
 a microwave line that comprises a first input end and a second input end that are electrically part of the microwave line,   wherein the first input end and the second input end are configured to be connected with a first signal source and a second signal source, respectfully, and the microwave line has a length that provides a standing wave for respective signals at the input ends; and   an output line that comprises a coupling line being separate from the microwave line through a gap, the coupling line being electromagnetically coupled to the microwave line across the gap,   wherein the output line further comprises an output end which is electrically part of the output line, the output end providing a signal which represents the vector sum of the respective signals at the input ends.   
     
     
         2 . The analog vector summing device according to  claim 1 , wherein the microwave line has a length corresponding to half of a largest wavelength in the signals at the input ends. 
     
     
         3 . The analog vector summing device according to  claim 2 , wherein the coupling line has a length corresponding to half of a largest wavelength of the signals at the input ends. 
     
     
         4 . The analog vector summing device according to  claim 1 , wherein the microwave line is a passive microwave line. 
     
     
         5 . The analog vector summing device according to  claim 1 , wherein the respective signals are at microwave frequencies.